/*-
 * <<
 * DBus
 * ==
 * Copyright (C) 2016 - 2017 Bridata
 * ==
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * >>
 */

package com.creditease.dbus.extractor.container;

import java.util.HashMap;
import java.util.Map;
import java.util.Properties;

import org.apache.kafka.clients.producer.KafkaProducer;
import org.apache.kafka.clients.producer.Producer;


public class KafkaContainer {
	private static KafkaContainer kafkaContainer;
	
	private Map<Properties, Producer> producerMap=new HashMap<Properties, Producer>();
	
	private KafkaContainer(){
		
	}
	
	public static KafkaContainer getInstance(){
		if(kafkaContainer==null){
			synchronized(KafkaContainer.class){
				if(kafkaContainer==null)
					kafkaContainer = new KafkaContainer();
			}
		}
		return kafkaContainer;
	}
	
	public Producer getProducer(Properties props){
		if(producerMap.containsKey(props)){
            return producerMap.get(props);
        }else{
            Producer producer = new KafkaProducer<>(props);
            producerMap.put(props, producer);
            return producer;
        }
	}
	
	public void clear(){
		producerMap.clear();
	}
}
